3
votes
3answers
125 views

I have a service listening on a port, how do I open the port externally?

I have a service that is listening on a tcp port, and it is listed with this command: >netstat -atp tcp | grep -i "listen" tcp4 0 0 192.168.2.5.8070 *.* LISTEN ...
3
votes
2answers
139 views

What are the numerous incoming connections I see on public wifi for?

In general I have incoming connections disabled by my security software (Little Snitch). But even when I do this, on public wifi, I see numerous incoming connections for netbios and mDNSResponder ...
1
vote
1answer
370 views

OSX Firewall: Forwarding Ports & Ignoring Non-Local Requests

On my production Debian server I use this to forward requests that come in to port 80 to a non-root process running on port 8080: sudo iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j ...
1
vote
2answers
78 views

Pf firewall logging

I have pf configured and working with rule sets that are logged. Where is pf logging to? How do I check these logs? How do I configure them?
2
votes
2answers
145 views

How to configure `ipfw` on Lion, Mountain Lion?

I'd like to configure and start ipfw on Macs running Lion, Mountain Lion. I found that pfctl is configured and started with: /etc/pf.conf /System/Library/LaunchDaemons/com.apple.pfctl.plist How is ...
0
votes
0answers
50 views

Prevent data on unsecured wireless, until VPN is connected [duplicate]

There's a lot of good advice around about avoiding connecting to unsecured wireless networks, and using a VPN (for all traffic) if you absolutely must use one. What seems to be missing from this ...
0
votes
0answers
79 views

Why does System Preferences -> Security & Privacy get a spinning rainbow beach ball (i.e. 'Not Responding') when accessing it?

When in System Preferences, if I click on Security & Privacy, I get a well-known spinning rainbow beach ball, meaning that I cannot access the Firewall settings from System Preferences. What could ...
1
vote
0answers
27 views

Enforcing firewall (native or 3rd-party)

We're currently doing PCI compliance, and one of the requirements is that mobile devices that have access to systems involved in processing card data have personal firewall software installed which ...
10
votes
1answer
15k views

Should I block incoming connections from “netbiosd”?

My (application) firewall settings are configured to block incoming connections from netbiosd. I don't recall setting this myself, and wonder what the consequences are. What are the consequences of ...
0
votes
1answer
77 views

Firewall Being turned off

Is it possible for an application to close my OSX firewall? Several times I have opened the security pref and I find FireWall off while I do not remember turning it off. For antivirus I use ClamXav ...
-1
votes
1answer
479 views

How do I allow a single IP to access everything on my Mac?

I tried IceFloor, but it's not working to white list all traffic from a single IP to bypass firewalls.
3
votes
3answers
3k views

Is allowing port 80 on Little Snitch safe?

InĀ Little Snitch, I allowed port 80 when a "google.com" popup appeared on my screen. I'm wondering if that was a good idea. If a hacker installed a program on my Mac, and that program sent ...
6
votes
4answers
2k views

How can I get the exact URLs/requests that a program is trying to connect to?

I currently use Little Snitch to control network traffic on my Macbook Pro, and see what my apps are connecting to. Unfortunately, Little Snitch only shows you the hostname that an app is connecting ...
7
votes
1answer
3k views

How stealthy is the stealth mode of the firewall? Does it increase security?

In the System Preferences there is the option: `Security & Privacy -> Firewall -> Advanced... -> Enable Stealth Mode Does this options significantly increase the security when ...
1
vote
1answer
834 views

sshdfilter and ipfw - why are my rules flushed so often?

I have sshdfilter setup to maintain ipfw rules when someone is un invitedly trying to login my system. This has been working quite a while. Since a while - beginning to suspect the last lion upgrade ...
3
votes
1answer
1k views

How can I enable DVD or CD Sharing with the Firewall on?

I'm trying to enable "DVD or CD Sharing" in the System Preferences. When I enable it, it says that the Firewall is blocking it. If I go into the Security > Firewall settings, I see that the first item ...